package com.jiadakeji.ppm.common.utils;


import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.ClassPathResource;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import java.io.*;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.security.KeyStore;

/**   
 * Http请求工具类   
 *   
 */  
public class UrlUtils {  
    static boolean proxySet = false;  
    static String proxyHost = "127.0.0.1";  
    static int proxyPort = 8087;  
    /**   
     * 编码   
     * @param source   
     * @return   
     */   
    public static String urlEncode(String source,String encode) {    
        String result = source;    
        try {    
            result = java.net.URLEncoder.encode(source,encode);    
        } catch (UnsupportedEncodingException e) {    
            e.printStackTrace();    
            return "0";    
        }    
        return result;    
    }  
      
      
    public static String urlEncodeGBK(String source) {    
        String result = source;    
        try {    
            result = java.net.URLEncoder.encode(source,"GBK");    
        } catch (UnsupportedEncodingException e) {    
            e.printStackTrace();    
            return "0";    
        }    
        return result;    
    }  
    /**   
     * 发起http请求获取返回结果   
     * @param req_url 请求地址   
     * @return   
     */   
    public static String httpRequest(String req_url) {  
        StringBuffer buffer = new StringBuffer();    
        try {    
            URL url = new URL(req_url);    
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();    
     
            httpUrlConn.setDoOutput(true);    
            httpUrlConn.setDoInput(true);    
            httpUrlConn.setUseCaches(false);    
            httpUrlConn.setConnectTimeout(50000);  
            httpUrlConn.setReadTimeout(50000);  
            httpUrlConn.setRequestMethod("GET");   
           // httpUrlConn.setRequestProperty("Accept", "image/png,image/*;q=0.8,*/*;q=0.5");  
           // httpUrlConn.setRequestProperty("Accept-Encoding", "gzip");    
           //httpUrlConn.setRequestProperty("Referer", "http://www.hao123.com/");  
            httpUrlConn.connect();  //发送请求  
            if (httpUrlConn.getResponseCode() == 200) {  
                  
                // 将返回的输入流转换成字符串    
                InputStream inputStream = httpUrlConn.getInputStream();    
                InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");    
                BufferedReader bufferedReader = new BufferedReader(inputStreamReader);    
         
                String str = null;    
                while ((str = bufferedReader.readLine()) != null) {    
                    buffer.append(str);    
                }    
                bufferedReader.close();    
                inputStreamReader.close();    
                // 释放资源    
                inputStream.close();    
                inputStream = null;    
                httpUrlConn.disconnect();  
                              
            }       
     
        } catch (Exception e) {    
            System.out.println(e.getStackTrace());    
        }    
        return buffer.toString();    
    }    
         
    /**   
     * 发送http请求取得返回的输入流   
     * @param requestUrl 请求地址   
     * @return InputStream   
     */   
    public static InputStream httpRequestIO(String requestUrl) {    
        InputStream inputStream = null;    
        try {    
            URL url = new URL(requestUrl);    
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();    
            httpUrlConn.setDoInput(true);    
            httpUrlConn.setRequestMethod("GET");    
            httpUrlConn.connect();    
            // 获得返回的输入流    
            inputStream = httpUrlConn.getInputStream();    
        } catch (Exception e) {    
            e.printStackTrace();    
        }    
        return inputStream;    
    }  
       
       
    /**  
     * 向指定URL发送GET方法的请求  
     *   
     * @param url  
     *            发送请求的URL  
     * @param param  
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  
     * @return URL 所代表远程资源的响应结果  
     */  
    public static String sendGet(String url, String param) {  
        String result = "";  
        BufferedReader in = null;  
        try {  
            String urlNameString = url + "?" + param;  
            URL realUrl = new URL(urlNameString);  
            // 打开和URL之间的连接  
            URLConnection connection = realUrl.openConnection();  
            // 设置通用的请求属性  
            connection.setRequestProperty("accept", "*/*");  
            connection.setRequestProperty("connection", "Keep-Alive");  
            connection.setRequestProperty("user-agent",  
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");  
            // 建立实际的连接  
            connection.connect();  
            // 获取所有响应头字段  
//            Map<String, List<String>> map = connection.getHeaderFields();  
            // 遍历所有的响应头字段  
//            for (String key : map.keySet()) {  
//                System.out.println(key + "--->" + map.get(key));  
//            }  
            // 定义 BufferedReader输入流来读取URL的响应  
            in = new BufferedReader(new InputStreamReader(  
                    connection.getInputStream()));  
            String line;  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {  
//            System.out.println("发送GET请求出现异常！" + e);  
            e.printStackTrace();  
        }  
        // 使用finally块来关闭输入流  
        finally {  
            try {  
                if (in != null) {  
                    in.close();  
                }  
            } catch (Exception e2) {  
                e2.printStackTrace();  
            }  
        }  
        return result;  
    }  
   
    /**  
     * 向指定 URL 发送POST方法的请求  
     *   
     * @param url  
     *            发送请求的 URL  
     * @param param  
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  
     * @param isproxy  
     *               是否使用代理模式  
     * @return 所代表远程资源的响应结果  
     */  
    public static String sendPost(String url, String param,boolean isproxy) {  
        OutputStreamWriter out = null;  
        BufferedReader in = null;  
        String result = "";  
        try {  
            URL realUrl = new URL(url);  
            HttpURLConnection conn = null;  
            if(isproxy){//使用代理模式  
                @SuppressWarnings("static-access")  
                Proxy proxy = new Proxy(Proxy.Type.DIRECT.HTTP, new InetSocketAddress(proxyHost, proxyPort));  
                conn = (HttpURLConnection) realUrl.openConnection(proxy);  
            }else{  
                conn = (HttpURLConnection) realUrl.openConnection();  
            }  
            // 打开和URL之间的连接  
               
            // 发送POST请求必须设置如下两行  
            conn.setDoOutput(true);  
            conn.setDoInput(true);  
            conn.setRequestMethod("POST");    // POST方法  
               
               
            // 设置通用的请求属性  
            conn.setRequestProperty("accept", "*/*");  
            conn.setRequestProperty("connection", "Keep-Alive");  
            conn.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");  
           // conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Type", "application/json");

            conn.connect();  
               
            // 获取URLConnection对象对应的输出流  
            out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");  
            // 发送请求参数  
            out.write(param);  
            // flush输出流的缓冲  
            out.flush();  
            // 定义BufferedReader输入流来读取URL的响应  
            in = new BufferedReader(  
                    new InputStreamReader(conn.getInputStream()));  
            String line;  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {  
//            System.out.println("发送 POST 请求出现异常！"+e);  
            e.printStackTrace();  
        }  
        //使用finally块来关闭输出流、输入流  
        finally{  
            try{  
                if(out!=null){  
                    out.close();  
                }  
                if(in!=null){  
                    in.close();  
                }  
            }  
            catch(IOException ex){  
                ex.printStackTrace();  
            }  
        }  
        return result;  
    }

    /**
     * 向指定 URL 发送POST方法的请求
     *
     * @param url
     *            发送请求的 URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @param encoding
     *             请求的编码格式
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param,String encoding) {
        OutputStreamWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            HttpURLConnection conn = null;
            conn = (HttpURLConnection) realUrl.openConnection();
            // 打开和URL之间的连接

            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setRequestMethod("POST");    // POST方法


            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Type", "application/json");

            conn.connect();

            // 获取URLConnection对象对应的输出流
            out = new OutputStreamWriter(conn.getOutputStream(), encoding);
            // 发送请求参数
            out.write(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream(),encoding));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
//            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }



    /**
     * 向指定 URL 发送POST方法的请求
     *
     * @param url
     *            发送请求的 URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @param isproxy
     *               是否使用代理模式
     * @param  contentType 提交参数类型， json  json提交方式， 不填或不为json则为form提交方式
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param,boolean isproxy,String contentType) {

        if("json".equals(contentType)){
            contentType = "application/json";

        }else{
            contentType = "application/x-www-form-urlencoded";
        }
        OutputStreamWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            HttpURLConnection conn = null;
            if(isproxy){//使用代理模式
                @SuppressWarnings("static-access")
                Proxy proxy = new Proxy(Proxy.Type.DIRECT.HTTP, new InetSocketAddress(proxyHost, proxyPort));
                conn = (HttpURLConnection) realUrl.openConnection(proxy);
            }else{
                conn = (HttpURLConnection) realUrl.openConnection();
            }
            // 打开和URL之间的连接

            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setRequestMethod("POST");    // POST方法


            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Type", contentType);

            conn.connect();

            // 获取URLConnection对象对应的输出流
            out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
            // 发送请求参数
            out.write(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
//            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }

    public static String HttpsRequest(String requestUrl, String requestMethod, String outputStr){
         Logger logger = LoggerFactory.getLogger(UrlUtils.class);
        String result = null;
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化
//            TrustManager[] tm = { new MyX509TrustManager() };
//            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
//            sslContext.init(null, tm, new java.security.SecureRandom());
//            // 从上述SSLContext对象中得到SSLSocketFactory对象
//            SSLSocketFactory ssf = sslContext.getSocketFactory();

            URL url = new URL(requestUrl);
            HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
//            conn.setSSLSocketFactory(ssf);

            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            // 设置请求方式（GET/POST）
            conn.setRequestMethod(requestMethod);

            // 当outputStr不为null时向输出流写数据
            if (null != outputStr) {
                OutputStream outputStream = conn.getOutputStream();
                // 注意编码格式
                outputStream.write(outputStr.getBytes("UTF-8"));
                outputStream.close();
            }

            // 从输入流读取返回内容
            InputStream inputStream = conn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String str = null;
            StringBuffer buffer = new StringBuffer();
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            }

            // 释放资源
            bufferedReader.close();
            inputStreamReader.close();
            inputStream.close();
            conn.disconnect();
            result= buffer.toString();
        } catch (ConnectException ce) {
            logger.error("连接超时：{}", ce);
        } catch (Exception e) {
            logger.error("https请求异常：{}", e);
        }
        return result;
    }

    public static String PostWithCert(String url, String outputEntity, boolean isLoadCert) throws Exception {
        HttpPost httpPost = new HttpPost(url);
        CloseableHttpResponse httpResponse;
        // 得指明使用UTF-8编码，否则到API服务器XML的中文不能被成功识别
        httpPost.addHeader("Content-Type", "text/xml");
        httpPost.setEntity(new StringEntity(outputEntity, "UTF-8"));
        if (isLoadCert) {
            // 加载含有证书的http请求
            httpResponse  = HttpClients.custom().setSSLSocketFactory(initCert()).build().execute(httpPost);
        } else {
            httpResponse =  HttpClients.custom().build().execute(httpPost);
        }
        String srcHtml = EntityUtils.toString(httpResponse.getEntity(), StandardCharsets.UTF_8);
        try {
            // 关闭流
            EntityUtils.consume(httpResponse.getEntity());
        } finally {
            httpResponse.close();
        }
        return srcHtml;
    }


    public static SSLConnectionSocketFactory initCert() throws Exception {
        ClassPathResource cl = new ClassPathResource("apiclient_cert.p12");
        FileInputStream instream = new FileInputStream(cl.getFile());
        KeyStore keyStore = KeyStore.getInstance("PKCS12");

        keyStore.load(instream,WechatUtils.mch_id.toCharArray());

        if (null != instream) {
            instream.close();
        }

        SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore,WechatUtils.mch_id.toCharArray()).build();
        SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[]{"TLSv1"}, null, SSLConnectionSocketFactory.getDefaultHostnameVerifier());

        return sslsf;
    }

    public static void main(String[] args) {  
          
        String url = "http://www.baidu.com/s";  
        String param ="word=刘德华";  
        String sr=UrlUtils.sendGet(url, param);  
        //String sr=HttpRequestUtil.sendGet(url,para);  
        System.out.println(sr);  
          
        //demo:代理访问  
        //String sr=HttpRequestUtil.sendPost(url,para,true);  
        //System.out.println(sr);  
    }






} 